Page 83 - Advances In Productive, Safe, and Responsible Coal Mining

Optimization of coal recovery and production rate as a function of panel dimensions 69

Fig. 5.6 Loaded haulage unit travel time.

Fig. 5.7 Haulage unit spotting time.

Fig. 5.8 CM travel time between cuts.

per shift and total operating costs. The model was built using Arena simulation soft-
ware based on the SIMAN language.
The model logic conceptualizes loads of coal as entities with specific attributes
(entity number, payload, and cut sequence—the cut sequence is assigned to each
entity to ensure the information is available to “route” loads to the active cut).
Battery-powered haulage units were modeled as guided transporters (an Arena-
specific modeling construct) used for hauling loads (entities). Transporters use entries
and crosscuts as haulage routes, which are modeled to restrict traffic flow such that